Metering valve



Jan, 2 1941 PATENT OFFICE METERING VALVE Leland H. Schmohl and Bertii H. '1. l'iindquiat, Cleveland, Ohio, assignors to Arthur L. Parker,

Cleveland, Ohio Application February 4, 1939, Serial No. 254,696

1 Claim. (Cl. 277-57) The invention relates generally to valve structures and has for an object to provide a novel valve structure having an inlet and an outlet and novel, multiple, flow controlling equipments in- M tervening the inlet and the outlet and selectivelv efiective for controlling the, rate of flow through said outlet. v

Another object of the invention is to provide a valve structure of the character stated in which id the flow controlling equipments include flow controlling oriflces'of difierent diameters and means ior rendering them selectively eflective, indlvidu4 ally or in selected combinations, so as to control the rate of flow through the outlet.

it In its more detailed nature, the invention resides in the provision of a valve structure including a block or casing having an inlet and a receiving chamber or header communicating therewlth'an 'outletand a how chamber or header it w 1; unicating therewith, crossports through which communication is had between the chamhers or headers through flow ducts or orifices oi varied diameters, and movable valve elements tor selectively opening or closing and rendering ti ehective or ineflfective said ducts or orifices, in-

dividually or in selected combinations, so as to control the rate of flow through the outlet.

With the above and other objects in view that hereinafter appear, the nature oi the invenit tion will be more clearly understood by followin the detailed description, the appended claim and the several views illustrated in the accompanyihg drawing.

In the drawing: it Figure 1 is a vertical longitudinal sectional view of a valve structure embodying the invention. 1

Figure 2 is a right end elevation. In the drawing, We have illustrated one practd tical embodiment of the invention in which is included a valve block or casing 5 having an inlet port 8 leading into a receiving chamber or header" I and which communicates through cross 1 bores or ports 8 with a flow chamber or header i i cunioating with an outlet or discharge hurt ill.

' Each cross bore or port 8 has a valve plug it fitted therein and each such plug includes a ooniiorm seat I! and a flow controlling bore. it In this particular illustration, three such cross ports and valve plugs are disclosed, but it is to he understood that this number may be varied to suit the demands or particular installations. In the particular example of practical embodiment it herein shown, one bore, ll, may be considered as having a diameter of .002", another, ll, adiameter of .003", and the third, Ii, as having a diameter of .004". This is merely an illustrative arrangement and it is to be understood that the individual bores have different diameters so that 5 they can be rendered selectivelyeflective, individually, or in selectedcombinations, for controlling the rate of flow through the outlet Ill.

Each cross bore 8 is counterbored as at It to receive any suitable packing equipment generaln 1y designated ll ior suitably sealing a valve stem l8 cooperating with the particular one of the valve orifices l3, H or l5.

Each valve member I8 includes a conical end is for seating on the particular plug seat l2, and it has a knurled head by which it can be threadably adjusted as at it in the particular individual mounting nut 22, said mounting nuts being threaded into counterbores 23 formed in the valve block or casing 5. 20

Assuming all valves to be closed asshown in Figure 1, by properly manipulating the particu lar valve member it to fully open the orifice II, the rate of flow through the valve outlet Wwill be directly dependent upon the area 01 the ori- 25 flee l3. By similarly opening either of the oriflees I 4 or t 5 while the others are closed a different rate of flow is obtained which is dependent upon the area of either of said orifice is or IE. By opening the orifices it, I4 and It in pairs it is possible to obtain three additional different rates of flow dependent upon the combined areas of the orifices it, i4, l3, IE or i4, i5 respectively.

' By opening all three orifices the rate oi'flow would depend upon the combined areas of all three orifices,

Thus through the use of the three orifices It,

I M and It, each of diflerent size, it is possible to obtain seven different rates oi flow through the valve outlet to. It will be obvious that by add- 40 ing valve units the amount oi. combination controls obtainable can be increased at will. For

example, by adding a fourth control oriiice or individual diameter, it is possible to obtain fifteen We claim:

A valve structure including a body having an 1 inlet and an outlet, a longitudinal receiving header bore communicating with the inlet, 9. iongitudinal flow header bore communicating with the outlet and disposed parallel to the receiving header bore, a plurality of cross bores communicating between the headers, a seated valve plug in each cross bore, said plugs having at the ends thereof adjacent one of the headers. flow 011- u fices therethrough of difierent diameters, and at the other ends of said plugs valve seats of stentially the same dimensions, said body having a. counter-bore axially aligned with each cross bore, and a. valve member adjustably mounted in .each counter-bore and adapted to cooperate with the valve seat on the valve plug for selectively opening and closing 31nd rendering e eeeeoe efiwtlve or ineffective said now orifices individually or in selected blnatlone so as to control the rate 01 flow through the outlet, said valve members being similarly dimensioned and interchangeable.

LELAND H. SCmOHL.

"rm 8,1. LINDQUIST. 

